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An efficient and practical method was developed for the synthesis of new (1,2,3‑triazol‑4‑yl)methyl phosphinates and (1,2,3-triazol-4-yl)methyl phosphates by the copper(I)‑catalyzed azide-alkyne cycloaddition (CuAAC) of organic azides and prop-2-ynyl phosphinate or prop-2-ynyl phosphate. The synthesis of (1‑benzyl-1<i>H</i>-1,2,3-triazol-4-yl)methyl diphenylphosphinate was optimized with respect to the reaction parameters, such as the temperature, reaction time, and catalyst loading. The approach was applied to a range of organic azides, which confirmed the wide scope and the substituent tolerance of the process. The method elaborated represents a novel approach for the synthesis of the target compounds.